PMI Model No. EQL-17D6G21D6G-12DB-292MF is a passive amplitude equalizer that operates over the frequency range of 17.6 to 21.6GHz. This unit has a maximum input power of 0.5 watts CW and a maximum VSWR of 2.0:1. The unit is supplied with 2.92 connectors in a housing that measures 1.10" x 0.67" x 0.22"